Regulating Size, Morphology and Dispersion of Nano-Crystallites of Hydroxyapatite by pH Value and Temperature in Microemulsion System
Nanosized hydroxyapatite (nano-HA) in narrow size distribution was prepared in the microemulsion system. The experimental factors of pH values and temperature were specially investigated in order to receive nano-HA particles with the required morphologies. Several kinds of nano-HA with different shapes, sizes and crystallization were obtained by regulating the above factors in the experiment. After the as-received nano-HA particles were heat-treated at an elevated temperature, they became a kind of globular particles with an average size of 60nm and showed excellent disperse ability in absolute alcohol.
Guy Daculsi and Pierre Layrolle
F.X. Jiang et al., "Regulating Size, Morphology and Dispersion of Nano-Crystallites of Hydroxyapatite by pH Value and Temperature in Microemulsion System", Key Engineering Materials, Vols. 361-363, pp. 195-198, 2008